Canon FAX-JX300 User Manual page 71

The Fax Does Not Switch Automatically Between Telephone and Fax
Reception
Cause
The fax may not be set to switch
automatically between telephone and
fax reception.
The fax may have a document stored in
memory.
An error may have occurred during
reception.
The Multi-Purpose Tray may be empty.
The sending fax machine may not send
the CNG signal that tells the fax that
the incoming signal is a fax.
* FAX-JX500/JX300 only.
Cannot Receive a Document Manually
Cause
You may have disconnected the call by
pressing [Start/Copy] or dialing the
remote receiving ID after hanging up.
The remote receiving ID may be
incorrect.
Print Quality is Poor
Cause
You may not be using the correct type
of paper.
The FINE cartridge print head may
need cleaning.
The sending fax machine may not be
functioning properly.
Error Correction Mode (ECM) may be
disabled.
Fax Does Not Print
Cause
The FINE Cartridge may not be
installed properly.
The FINE Cartridge print head may
need cleaning.
The FINE Cartridge may need to be
replaced.
A document may be set.
For the fax to switch automatically, the receive mode must be set to <FAX/TEL
AUTO SW> (Fax/Tel mode) or <ANS.MACHINE MODE> (see page 27), or
<TAM MODE*> must be set (see page 37). If you have set <ANS.MACHINE
MODE>, check that an answering machine is connected to the fax and that it is
turned on with an outgoing message properly recorded (see page 29).
Print out any documents stored in memory (see page 35).
Check the LCD for an error message (see page 74).
Print an activity report and check for an error (see page 53).
Make sure paper is loaded in the Multi-Purpose Tray (see the Easy Setup
Instructions).
Some fax machines cannot send the CNG signal that tells your fax the incoming
call is from a fax machine. In such cases, you will have to receive the document
manually (see page 29).
Always press [Start/Copy] or dial the remote receiving ID before hanging up the
Handset, otherwise you will disconnect the call (see page 29).
Make sure you dialed the correct remote receiving ID (see page 29).
Make sure you load paper that meets the paper requirements for the fax (see
page 15).
Clean the FINE cartridge print head if necessary (see page 59).
The sending fax machine usually determines the quality of the document. Call
the sender and have them make sure their fax machine is functioning properly.
Make sure ECM is on (see ECM RX on page 50).
Make sure the FINE Cartridge is installed properly (see the Easy Setup
Instructions).
Be sure to remove the protective tape from the FINE Cartridge before you
install it (see the Easy Setup Instructions).
Clean the FINE Cartridge print head if necessary (see page 59).
Determine if the problem is with the FINE Cartridge and replace if necessary
(see page 55).
Make sure a document is not set.
Action
Action
Action
Action
Troubleshooting 69